Signs & Symptoms of a Bad Engine Coolant Temperature Sensor! (ECT Sensor)

In this video, Zach takes a deep dive into the Engine Coolant Temperature (ECT) Sensor, a critical component in your vehicle’s engine management system. He explains its purpose and how it plays a vital role in regulating fuel delivery, ignition timing, and overall engine performance. When this sensor malfunctions, it can lead to a variety of drivability issues and even trigger diagnostic trouble codes. He’ll cover the most common fault codes associated with a failing ECT sensor (like P0116 & P0128), how to diagnose issues, and the proper steps to fix or replace it. Whether you're troubleshooting a check engine light or looking to prevent long-term engine problems, this video will provide the essential information you need to keep your vehicle running smoothly. Tools we recommend having for your vehicle at all times: OBD scanner: https://amzn.to/3OIM7Wl Air compressor: https://amzn.to/48gnZ3W Battery charger/jumper: https://amzn.to/4bN2jQe Electric ratchet wrench: https://amzn.to/3wfG2u1 Dewalt flashlights: https://amzn.to/42G6edd Flex-head ratchet wrenches: https://amzn.to/3SydrHM Grease monkey disposable gloves: https://amzn.to/3wghbX7 Magnetic pick up tools: https://amzn.to/3uwT0D4 Rollet seat: https://amzn.to/3up8QzN 8020 Automotive Website: https://8020automotive.com/ Check Out Our Portfolio: Tuning Pro - https://tuningpro.co/ BMW Tuning - https://bmwtuning.co/ Diesel IQ - https://dieseliq.com/ Chevy Trucks - https://chevytrucks.org/ Porsche Mania - https://porsche-mania.com/ Muscle Car Club - https://musclecarclub.com/ New Videos Every Week. Subscribe so you don't miss a video! ►Subscribe Here: https://bit.ly/3xtNUph --------------------------------------------------------------------- What is 8020 Automotive? 8020 Automotive owns and operates a portfolio of content websites and eCommerce stores in the Automotive industry. We provide over a million monthly readers with high-quality automotive content, focused predominantly on technical and performance modification guides. --------------------------------------------------------------------- 00:14 – What is the Purpose of a ECT Sensor? (Engine Coolant Temperature Sensor) 00:40 – Signs & Symptoms of a Bad ECT Sensor 00:47 – Most Common Symptom of a Failing Coolant Temperature Sensor - Check Engine Light 01:20 – Most Common Fault Codes for ECT Sensor Failure (P0116-P0119) 01:59 – Symptom #2 of a Failed ECT Sensor 02:44 – Symptom #3 of Engine Coolant Temp Sensor Failure 04:15 – Symptom #4 of a Faulty ECT Sensor 05:26 – How to Fix/Replace an Engine Coolant Temperature Sensor